diff options
Diffstat (limited to 'migration/block.c')
| -rw-r--r-- | migration/block.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/migration/block.c b/migration/block.c index ebc10e628d..1941bc2402 100644 --- a/migration/block.c +++ b/migration/block.c @@ -379,7 +379,7 @@ static void unset_dirty_tracking(void) } } -static void init_blk_migration(QEMUFile *f) +static int init_blk_migration(QEMUFile *f) { BlockDriverState *bs; BlkMigDevState *bmds; @@ -390,6 +390,8 @@ static void init_blk_migration(QEMUFile *f) BlkMigDevState *bmds; BlockDriverState *bs; } *bmds_bs; + Error *local_err = NULL; + int ret; block_mig_state.submitted = 0; block_mig_state.read_done = 0; @@ -411,11 +413,12 @@ static void init_blk_migration(QEMUFile *f) sectors = bdrv_nb_sectors(bs); if (sectors <= 0) { + ret = sectors; goto out; } bmds = g_new0(BlkMigDevState, 1); - bmds->blk = blk_new(); + bmds->blk = blk_new(BLK_PERM_CONSISTENT_READ, BLK_PERM_ALL); bmds->blk_name = g_strdup(bdrv_get_device_name(bs)); bmds->bulk_completed = 0; bmds->total_sectors = sectors; @@ -445,7 +448,11 @@ static void init_blk_migration(QEMUFile *f) BlockDriverState *bs = bmds_bs[i].bs; if (bmds) { - blk_insert_bs(bmds->blk, bs); + ret = blk_insert_bs(bmds->blk, bs, &local_err); + if (ret < 0) { + error_report_err(local_err); + goto out; + } alloc_aio_bitmap(bmds); error_setg(&bmds->blocker, "block device is in use by migration"); @@ -453,8 +460,10 @@ static void init_blk_migration(QEMUFile *f) } } + ret = 0; out: g_free(bmds_bs); + return ret; } /* Called with no lock taken. */ @@ -705,7 +714,11 @@ static int block_save_setup(QEMUFile *f, void *opaque) block_mig_state.submitted, block_mig_state.transferred); qemu_mutex_lock_iothread(); - init_blk_migration(f); + ret = init_blk_migration(f); + if (ret < 0) { + qemu_mutex_unlock_iothread(); + return ret; + } /* start track dirty blocks */ ret = set_dirty_tracking(); |